If you are a pilot or regularly use general aviation aircraft with a relative who flies, a business partner or friends, always carry with you good and enough warm clothes, even if you fly over tropical areas.
First of all, if the aircraft climbs enough, you will indeed find cold air up there, and while aircraft usually have air conditioning or a heating system, the fact is that such devices may fail, and they do from time to time, so it would not be nice to chill-down or even suffer hypothermia up there.
And then, if you are forced to perform an emergency landing in the middle of nowhere, you will have to wait for search and rescue teams to arrive, and that may take time. You will be in a survival situation which can get very serious in places like high mountains that pilots take for granted that in normal conditions they would never care about.
Don’t die just because you did not carry a jacket! Remember that the aircraft does the job of flying; you will carry no more weight on your back by taking with you some more clothing that apparently necessary. If you still don’t have a flight jacket, get one thorough our section.
Think about it: Do you have enough gear to survive a night in a landscape like this one? Even if you only fly five minutes over such terrain, caution would be a wise attitude to enforce.
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